Does anybody believe in like sudden out of nowhere recoveries?

Like sometimes I go to bed thinking "I could wake up tommorow and be completely fine, no anxiety, no depression, no other symptoms.
However I probley shouldn't do that because when I do wake up I'm now like In a depressed mood because it's another day.

I guess I don't believe that one day I will wake up and be completely fine, and back to my old self then in a week I forgot this whole thing.

But does anybody believe In like magical sudden recoveries? Or like had it happen to them